20 lines
537 B
GLSL
20 lines
537 B
GLSL
uniform vec3 extents;
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uniform mat4 RHMatrix;
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ivec3 resolution = ivec3(32, 16, 32);
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out vec3 uvw;
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void main(void)
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{
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// Determine the RH center
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float gx = int(gl_VertexID) & (resolution.x - 1);
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float gy = int(gl_VertexID >> 5) & (resolution.y - 1);
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float gz = int(gl_VertexID >> 9) & (resolution.z - 1);
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uvw = vec3(gx, gy, gz) / vec3(resolution);
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vec3 WorldPos = (2. * uvw - 1.) * extents;
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gl_Position = ProjectionViewMatrix * RHMatrix * vec4(WorldPos, 1.);
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gl_PointSize = 500. / gl_Position.w;
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} |